<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>商城主页</title>
    <style>
        body {
            text-align: center;
            margin-top: 20px;
        }
        
        h1 {
            font-size: 24px;
            color: #333;
        }
        
        form {
            margin-top: 20px;
        }
        
        input[type="number"] {
            padding: 10px;
        }
        
        button[type="submit"] {
            padding: 10px 20px;
            background-color: #007bff;
            color: #fff;
            border: none;
            cursor: pointer;
        }
        
        button[type="submit"]:hover {
            background-color: #0056b3;
        }
        
        table {
            width: 80%;
            margin: 0 auto;
            border-collapse: collapse;
            border: 2px solid #000;
        }
        
        th, td {
            border: 1px solid #000;
            padding: 10px;
        }
        
        th {
            background-color: #f2f2f2;
        }
    </style>
</head>
<body>
    <center>
        <h1>祝您购物愉快</h1>
        <form action="/" method="post">
            请输入采购的商品数量：<input type="number" name="shop">
            <button type="submit">点击下单</button>
        </form>
    </center>
    <br>
    <table>
        <thead>
            <tr>
                <th>用户编号</th>
                <th>用户名称</th>
                <th>商品名称</th>
                <th>商品金额</th>
                <th>收货地址</th>
            </tr>
        </thead>
        <tbody>
            {% if items %}
            {% for item in items %}
                <tr>
                    {% for k in item %}
                    <td>{{ k }}</td>
                    <td>{{ item[k][0] }}</td>
                    <td>{{ item[k][1] }}</td>
                    <td>{{ item[k][2] }}</td>
                    <td>{{ item[k][3] }}</td>
                    {% endfor %}
                </tr>
            {% endfor %}
            {% endif %}
        </tbody>
    </table>
</body>
</html>
